Question on: WAEC Mathematics - 1999
From the diagram above. ABC is a triangle inscribed in a circle center O. ∠ACB = 40o and |AB| = x cm. calculate the radius of the circle.
A
\(\frac{x}{sin 40^o}\)
B
\(\frac{x}{cos 40^o}\)
C
\(\frac{x}{2 sin 40^o}\)
D
\(\frac{x}{2 cos 40^o}\)
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Correct Option: C
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